Detection head structure for rapid plastometer

Abstract

The utility model relates to the field of plastometer equipment, in particular to a detection head structure for a rapid plastometer. The detection head structure for the rapid plastometer comprises a mounting plate and a lifting beam mounted on the mounting plate, and a dial indicator is mounted on the lifting beam; the screw rod is installed in the middle of the lifting beam in a threaded mode, and a downward pressing piece is installed at the bottom of the screw rod; the bearing disc is movably inserted in the mounting plate and located under the dial indicator, an adjusting piece used for adjusting the position of the bearing disc is installed at the bottom of the mounting plate, a bearing cavity is formed in the middle of the bearing disc, a lower supporting piece is installed in the bearing cavity and comprises a tray, the tray is installed at the top end of the bearing cavity in a threaded mode, and a containing groove is formed in the middle of the tray. A detection piece is arranged on one side of the bearing disc, and an infrared distance meter is arranged on the lifting beam and located over the detection piece. The detection head structure for the rapid plastometer provided by the utility model has the advantages of automatic correction and uniform and convenient detection and heating.

Description

Technical Field

[0001] The utility model relates to the field of plasticity meter equipment, in particular to a detection head structure for a rapid plasticity meter. Background Art

[0002] The rapid plasticity meter is an instrument that can quickly measure the plasticity of raw rubber and unvulcanized rubber. The most widely used Wallace rapid plasticity meter is used to measure the initial value of plasticity and plasticity retention rate of natural rubber. It is an important instrument for testing the quality indicators of natural rubber.

[0003] At present, the rapid plastometers on the market all use springs or levers to make the 100N force required by the national standard act on the specimen from bottom to top. Before testing the specimen, the detection head of the rapid plastometer needs to be manually zeroed to ensure the accuracy of the plasticity test. However, the manual zeroing calibration is adjusted through the screw on the through-hole beam and cannot be precisely and finely adjusted.

[0004] Therefore, it is necessary to provide a new detection head structure for a rapid plastic meter to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a detection head structure for a rapid plasticity meter which can automatically calibrate and conveniently detect heating uniformity.

[0006] The detection head structure for the rapid plasticity meter provided by the utility model comprises: a mounting plate, and a lifting beam mounted on the mounting plate, and a dial indicator is mounted on the lifting beam;

[0007] A screw rod, threadedly mounted on the middle portion of the lifting beam, and a pressing piece is mounted on the bottom of the screw rod;

[0008] A carrying plate is movably inserted on the mounting plate and is located directly below the dial indicator, and an adjusting member for adjusting the position of the carrying plate is installed at the bottom of the mounting plate, a carrying cavity is opened in the middle of the carrying plate, a lower supporting member is installed in the carrying cavity, and the lower supporting member includes a tray, the tray is threadedly installed on the top of the carrying cavity, and a placement groove is provided in the middle of the tray, a plurality of first through holes connected to the carrying cavity are evenly opened on the inner side wall of the placement groove, a constant temperature resistance wire is embedded in the carrying cavity, an air intake pipe connected to the carrying cavity is embedded on the carrying plate, a detection sheet is provided on one side of the carrying plate, and an infrared rangefinder is provided on the lifting beam directly above the detection sheet.

[0009] Preferably, the pressing member includes a connecting rod, one end of which is fixedly connected to the bottom of the screw, and a heating hood is fixedly installed on the end of the connecting rod away from the screw. The heating hood is arranged directly above the placement groove, and a pressing block is installed at the bottom end of the heating hood, and the heating hood is located on the outside of the pressing block and a plurality of second through holes are evenly opened, and an air inlet pipe 2 is embedded on the outer wall of the heating hood.

[0010] Preferably, the outer wall of the heating cover is slidably matched with the inner wall of the placement groove.

[0011] Preferably, the adjusting member includes an intermediate rod, and a plurality of the intermediate rods are provided, and one end of the plurality of the intermediate rods is fixedly connected to the bottom of the supporting plate, and the other ends of the plurality of intermediate rods pass through the sockets provided in the mounting plate and are fixedly connected to the connecting plate together, and a hanger is fixedly installed at the bottom of the mounting plate, a screw rod is rotatably installed on the hanger, and a servo motor for driving the screw rod to rotate is installed.

[0012] Preferably, the connecting plate is provided with a threaded through hole which is threadably connected to the screw rod.

[0013] Preferably, connection grooves and mounting holes are provided on four sides of the mounting plate.

[0014] Compared with the related art, the detection head structure for the rapid plasticity meter provided by the utility model has the following beneficial effects:

[0015] 1. The utility model provides a detection head structure for a rapid plasticity meter, which is provided with a bearing plate on a mounting plate, a lower support member on the bearing plate, and the lower support member is convenient for automatic calibration and zeroing before detection by using the coordination of the adjusting member in the middle rod, the connecting plate, the hanger, the screw rod, the servo motor and the infrared rangefinder, so as to facilitate the plasticity detection of the sample in the later stage;

[0016] 2. The lower pressing piece and the upper supporting piece used for clamping the sample utilize the cooperation of the connecting rod, the heating cover, the pressing block, the second air inlet pipe, the second through hole, the carrying plate, the detection piece, the carrying cavity, the lower supporting piece, the tray, the constant temperature resistance wire, the first air inlet pipe, the placement groove and the first through hole to facilitate the simultaneous uniform heating of the sample while clamping the sample, thereby improving the detection speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a preferred embodiment of the detection head structure for the rapid plastic meter provided by the utility model;

[0018] Figure 2 A schematic structural diagram of another perspective of the detection head structure for the rapid plasticity meter provided by the utility model;

[0019] Figure 3 A schematic diagram of the structure of the carrier plate provided by the utility model;

[0020] Figure 4 for Figure 2 A partial enlarged view of A shown.

[0021] Numbers in the figure: 1. Mounting plate; 2. Lifting beam; 3. Dial indicator; 4. Screw; 5. Pressing piece; 51. Connecting rod; 52. Heating cover; 53. Pressing block; 54. Inlet pipe 2; 501. Second through hole; 6. Carrying plate; 61. Detection sheet; 601. Carrying cavity; 7. Lower supporting piece; 71. Tray; 72. Constant temperature resistance wire; 73. Inlet pipe 1; 701. Placement slot; 702. First through hole; 8. Adjusting piece; 81. Middle rod; 82. Connecting plate; 83. Hanger; 84. Screw; 85. Servo motor; 9. Infrared rangefinder. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0024] See also Figures 1 to 4 The present invention provides a detection head structure for a rapid plastic meter, and the detection head structure for the rapid plastic meter includes:

[0025] A mounting plate 1, and a lifting beam 2 mounted on the mounting plate 1, wherein a dial indicator 3 is mounted on the lifting beam 2;

[0026] A screw rod 4 is threadedly mounted on the middle portion of the lifting beam 2, and a pressing member 5 is mounted on the bottom of the screw rod 4;

[0027] The carrying plate 6 is movably inserted on the mounting plate 1 and is located directly below the dial indicator 3, and an adjusting member 8 for adjusting the position of the carrying plate 6 is installed at the bottom of the mounting plate 1, a carrying cavity 601 is opened in the middle of the carrying plate 6, a lower supporting member 7 is installed in the carrying cavity 601, and the lower supporting member 7 includes a tray 71, the tray 71 is threadedly installed on the top of the carrying cavity 601, and a placement groove 701 is provided in the middle of the tray 71, a plurality of first through holes 702 connected to the carrying cavity 601 are evenly opened on the inner side wall of the placement groove 701, a constant temperature resistance wire 72 is embedded in the carrying cavity 601, an air intake pipe 73 connected to the carrying cavity 601 is embedded on the carrying plate 6, a detection sheet 61 is provided on one side of the carrying plate 6, and an infrared rangefinder 9 is provided on the lifting beam 2 directly above the detection sheet 61.

[0028] The pressing member 5 includes a connecting rod 51, one end of which is fixedly connected to the bottom of the screw rod 4, and a heating cover 52 is fixedly installed on the end of the connecting rod 51 away from the screw rod 4. The heating cover 52 is arranged just above the placement groove 701, and a pressing block 53 is installed at the bottom end of the heating cover 52, and the heating cover 52 is located on the outside of the pressing block 53 and a plurality of second through holes 501 are evenly opened, and an air intake pipe 2 54 is embedded on the outer wall of the heating cover 52.

[0029] The outer wall of the heating cover 52 is slidably matched with the inner wall of the placement groove 701;

[0030] The four sides of the mounting plate 1 are provided with connection grooves and mounting holes.

[0031] It should be noted that: the mounting plate 1 is installed on the equipment of the rapid plastic meter through the opening of the connecting groove and the mounting hole, and then before the sample detection, the distance between the carrier plate 6 and the lower pressure member 5 is adjusted by driving the adjusting member 8 until the reading of the dial indicator 3 is a whole one hundred, and the infrared rangefinder 9 is synchronously used with the detection piece 61 to achieve precise distance adjustment, and then the lifting beam 2 is lifted upward, and then the sample is placed in the placement groove 702 of the tray 71, and then the air intake pipe 1 73 and the air intake pipe 2 54 are connected to the external blowing member through the duct, and then after the lifting beam 2 automatically descends, the constant temperature resistance wire 72 is started, and the constant temperature hot air is blown from the first through hole 701 and the second through hole 501 to the clamped sample to heat the sample for plasticization detection. After the lifting beam 2 descends and squeezes the sample, the reading of the dial indicator 3 is recorded at this moment, and then the plasticity value is obtained by subtracting the reading from one hundred. The detection and correction are convenient, the heating is uniform, and the detection is convenient.

[0032] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 The adjusting member 8 includes an intermediate rod 81, and the intermediate rod 81 is provided in plurality, and one end of the intermediate rods 81 is fixedly connected to the bottom of the carrying plate 6, and the other ends of the intermediate rods 81 pass through the jacks provided in the mounting plate 1, and are fixedly connected to a connecting plate 82 together, and a hanger 83 is fixedly installed at the bottom of the mounting plate 1, and a screw rod 84 is rotatably installed on the hanger 83, and a servo motor 85 for driving the screw rod 84 to rotate is installed;

[0033] The connecting plate 82 is provided with a threaded through hole threadably connected to the screw rod 84 .

[0034] It should be noted that when the adjusting member 8 is in use and the distance needs to be adjusted, the servo motor 85 is started to drive the screw rod 84 to rotate, so that the screw rod 84 drives the connecting plate 82 to drive the intermediate rod 81 to slide along the jack opened in the mounting plate 1, thereby driving the supporting plate 6 to slide and adjust, thereby adjusting the distance and automatically correcting.

[0035] The working principle of the detection head structure for the rapid plasticity meter provided by the utility model is as follows:

[0036] The mounting plate 1 is mounted on the rapid plastic meter through the connection groove and the mounting hole. Then, before the sample test, the servo motor 85 is started to drive the screw 84 to rotate, so that the screw 84 drives the connection plate 82 to drive the intermediate rod 81 to slide along the jack opened on the mounting plate 1, thereby driving the bearing plate 6 to slide and adjust, so as to adjust the distance and automatically calibrate until the reading of the dial indicator 3 without the sample is one hundred, and the infrared distance meter 9 cooperates with the detection piece 61 to achieve precise distance adjustment synchronously, and then the lifting beam 2 is lifted upward. , and then place the sample in the placement slot 702 of the tray 71, and then connect the air inlet pipe 1 73 and the air inlet pipe 2 54 to the external blowing member through the duct, and then after the lifting beam 2 automatically descends, start the constant temperature resistance wire 72, and blow the constant temperature hot air from the first through hole 701 and the second through hole 501 to the clamped sample to heat the sample for plasticization detection. After the lifting beam 2 descends and squeezes the sample, record the reading of the dial gauge 3 at this moment, and then subtract the reading from one hundred to get the plasticity value. The detection and correction are convenient, the heating is uniform, and the detection is convenient.

[0037] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A detection head structure for a rapid plasticity meter, comprising: A mounting plate (1), and a lifting beam (2) mounted on the mounting plate (1), wherein a dial indicator (3) is mounted on the lifting beam (2); It is characterized by further comprising: A screw rod (4) is threadedly mounted on the middle portion of the lifting beam (2), and a pressing piece (5) is mounted on the bottom of the screw rod (4); A carrier plate (6) is movably inserted on the mounting plate (1) and is located directly below the dial indicator (3), and an adjusting member (8) for adjusting the position of the carrier plate (6) is installed at the bottom of the mounting plate (1), a bearing cavity (601) is opened in the middle of the carrier plate (6), a lower supporting member (7) is installed in the bearing cavity (601), and the lower supporting member (7) includes a tray (71), and the tray (71) is threadedly installed on the top of the bearing cavity (601), and the tray (71) A placement groove (701) is provided in the middle, and a plurality of first through holes (702) communicating with the bearing cavity (601) are evenly opened on the inner side wall of the placement groove (701), a constant temperature resistance wire (72) is embedded in the bearing cavity (601), an air intake pipe (73) communicating with the bearing cavity (601) is embedded on the bearing plate (6), a detection sheet (61) is provided on one side of the bearing plate (6), and an infrared rangefinder (9) is provided on the lifting beam (2) directly above the detection sheet (61).

2. The detection head structure for the rapid plastic meter according to claim 1, characterized in that: The lower pressing member (5) comprises a connecting rod (51), one end of which is fixedly connected to the bottom of the screw rod (4), and a heating cover (52) is fixedly installed on the end of the connecting rod (51) away from the screw rod (4), and the heating cover (52) is arranged directly above the placement groove (701). A pressing block (53) is installed at the bottom end of the heating cover (52), and the heating cover (52) is located on the outside of the pressing block (53) and is evenly provided with a plurality of second through holes (501), and an air intake pipe 2 (54) is embedded on the outer wall of the heating cover (52).

3. The detection head structure for the rapid plastic meter according to claim 2, characterized in that: The outer wall of the heating cover (52) is slidably matched with the inner wall of the placement groove (701).

4. The detection head structure for the rapid plastic meter according to claim 1, characterized in that: The adjusting member (8) comprises an intermediate rod (81), wherein a plurality of the intermediate rods (81) are provided, and one end of the plurality of the intermediate rods (81) is fixedly connected to the bottom of the carrying plate (6), and the other ends of the plurality of the intermediate rods (81) pass through the insertion holes provided in the mounting plate (1) and are fixedly connected to a connecting plate (82) together, and a hanger (83) is fixedly installed at the bottom of the mounting plate (1), a screw rod (84) is rotatably installed on the hanger (83), and a servo motor (85) for driving the screw rod (84) to rotate is installed.

5. The detection head structure for the rapid plastic meter according to claim 4, characterized in that: The connecting plate (82) is provided with a threaded through hole threadably connected to the screw rod (84).

6. The detection head structure for the rapid plastic meter according to claim 1, characterized in that: The four sides of the mounting plate (1) are provided with connection grooves and mounting holes.

Images